Introduced in 1980 by Seagate Technology (then Shugart Technology), it stored up to 5 megabytes after formatting. The ST-506 and ST-412 (sometimes written ST506 and ST412) were early hard disk drives introduced by Seagate in 1980 and 1981 respectively, that later became construed as hard disk drive interfaces: the ST-506 disk interface and the ST-412 disk interface. This is a list of all ST-506 cards in the wiki. This list also includes composite devices, such as those cards that include a floppy controller or parallel. Even installing an older IDE hard drive would be sufficient, but a quick googling yielded no results. The only option I can think of is to find ISA IDE controller, but maybe I am missing something. All kind of tips and tricks welcome and appreciated. Long. When the Archimedes A300 range was launched there were two types of disc interface available; ST506 (or MFM) which was expensive but slow and SCSI which was very expensive but fast. Acorn left the hard disc interface off the A300 motherboard although they. In the early 1980's the so called "Winchester" ST-506 drives were by far the most commonly used drives.
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